Add University of California copyright and revised BSDL license.

Remove Ken Arnold copyright.
(print_version): Remove Ken Arnold, refer to new file ETAGS.README.

lib-src/etags.c

 /* Tags file maker to go with GNU Emacs           -*- coding: latin-1 -*-
-   Copyright (C) 1984, 1987, 1988, 1989, 1993, 1994, 1995,
-                 1998, 1999, 2000, 2001, 2002, 2003, 2004,
-                 2005, 2006, 2007 Free Software Foundation, Inc. and Ken Arnold
 
- This file is not considered part of GNU Emacs.
+Copyright (C) 1984 The Regents of the University of California
 
- This program is free software; you can redistribute it and/or modify
- it under the terms of the GNU General Public License as published by
- the Free Software Foundation; either version 2 of the License, or
- (at your option) any later version.
+Redistribution and use in source and binary forms, with or without
+modification, are permitted provided that the following conditions are
+met:
+1. Redistributions of source code must retain the above copyright
+   notice, this list of conditions and the following disclaimer.
+2. Redistributions in binary form must reproduce the above copyright
+   notice, this list of conditions and the following disclaimer in the
+   documentation and/or other materials provided with the
+   distribution.
+3. Neither the name of the University nor the names of its
+   contributors may be used to endorse or promote products derived
+   from this software without specific prior written permission.
 
- This program is distributed in the hope that it will be useful,
- but WITHOUT ANY WARRANTY; without even the implied warranty of
- MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
- GNU General Public License for more details.
+THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS''
+AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO,
+THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
+PURPOSE ARE DISCLAIMED.  IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS
+BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
+CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
+SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR
+BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY,
+WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE
+OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN
+IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+
+
+Copyright (C) 1984, 1987, 1988, 1989, 1993, 1994, 1995, 1998, 1999,
+  2000, 2001, 2002, 2003, 2004, 2005, 2006, 2007
+  Free Software Foundation, Inc.
+
+This file is not considered part of GNU Emacs.
+
+This program is free software; you can redistribute it and/or modify
+it under the terms of the GNU General Public License as published by
+the Free Software Foundation; either version 2 of the License, or
+(at your option) any later version.
+
+This program is distributed in the hope that it will be useful,
+but WITHOUT ANY WARRANTY; without even the implied warranty of
+MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+GNU General Public License for more details.
+
+You should have received a copy of the GNU General Public License
+along with this program; if not, write to the Free Software Foundation,
+Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA. */
+
+
+/* NB To comply with the above BSD license, copyright information is
+reproduced in etc/ETAGS.README.  That file should be updated when the
+above notices are.
+
+To the best of our knowledge, this code was originally based on the
+ctags.c distributed with BSD4.2, which was copyrighted by the
+University of California, as described above. */
 
- You should have received a copy of the GNU General Public License
- along with this program; if not, write to the Free Software Foundation,
- Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA. */
 
 /*
  * Authors:
@@ -842,8 +881,8 @@ static void
 print_version ()
 {
   printf ("%s (%s %s)\n", (CTAGS) ? "ctags" : "etags", EMACS_NAME, VERSION);
-  puts ("Copyright (C) 2007 Free Software Foundation, Inc. and Ken Arnold");
-  puts ("This program is distributed under the same terms as Emacs");
+  puts ("Copyright (C) 2007 Free Software Foundation, Inc.");
+  puts ("This program is distributed under the terms in ETAGS.README");
 
   exit (EXIT_SUCCESS);
 }